Pronunciation: (siks'tē-nīn'), [key]
1. a cardinal number, 60 plus 9.
2. a symbol for this number, as 69 or LXIX.
3. a set of this many persons or things.
4. Slang (vulgar). simultaneous oral-genital sexual activity between two partners.
amounting to 69 in number.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.